EWM WEGA 401 Operating Instructions Manual page 38

Functional characteristics
Machine control – Operating elements
Item Symbol Description
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Button, Test welding parameters
Press the button and set the required welding voltage on the step switch at the same
time (the open-circuit voltage will be shown in the upper display; the wire speed,
welding current or panel thickness in the lower display).
Rotary dial, Wire speed / welding parameter setting
Infinite adjustment of the wire speed or welding current, sheet metal thickness, JOB
and runtime parameters such as gas post-flows, wire burn-back, etc.
Key button, Operating mode
Non-latched
Latched
MIG spots (parameter selection t1 is carried out using the "Runtime
parameters" button, setting on the "Rotary transducer".
Interval (parameter selection, t1 = pulse time, t2 = pulse pause, carried out
using "Runtime parameter" button, setting on the "Rotary transducer".
"Runtime parameters" button
The parameters are set on the rotary transducer
Gas post-flow time (0.0 s to 10.0 s)
Wire burn-back (-50% to +50%)
Spot time / pulse time (0.1 s to 5.0 s)
Pulse pause (0.1 s to 2.0 s)
Display, Top
Display of the welding voltage, correction value for the wire speed or parameter
designations for runtime parameters.
Display, Down
Display of wire feed speed, welding current, sheet metal thickness, JOB number and
runtime parameters.
Signal light Voltage
On when the welding voltage or open circuit voltage is displayed.
Signal light, Wire correction
On when the correction value of the wire speed is being displayed.
Signal light, HOLD
Lit: Display shows the last parameters used for welding.
Not lit: Display shows the setpoint values or current values during welding.
Signal light, MANUAL
Signal light is on when the machine is not in JOB mode. All parameter settings are
carried out "manually" by the user (JOB 0).
Signal light, Choke tappings
Depending on the machine design, there are two or three workpiece connection
sockets on the welding machine (choke tappings). The machine displays the
recommended workpiece connection in JOB mode (see relevant images on the
connection sockets).
Choke tapping 1 (hard), workpiece lead connection socket
Choke tapping 2 (medium), workpiece lead connection socket
Choke tapping 3 (soft), workpiece lead connection socket
Item No.: 099-004934-EWM01